Unlike most chargers, the Sony charger is not a "dumb" timer-based charger, so it won't overcharge an already full battery. The Sony also handles each cell individually, which is rare in chargers of this price range.

It depends. If your phones are old enough, there's a good chance that they use NiCd rechargeable batteries. The batteries here are of NiMH type. In order to tell, look at the phone's instruction booklet, or at the existing batteries (assuming originals).

For powering the units, it does not really matter what type you use - NiCd, NiMH or plain Alkaline, they will all work. The problem is that the chargers at the cradles of NiCd phones are *super dumb* chargers that can ruin the more sensitive NiMH.

Anyway, from my experience, most phones use battery packs, and not single units, so you may need to hack the tiny wire and connector to work with plain batteries.

FYI. My local Big Lots had these last week for $8 +tax. All black tops from China and the exact same packaging. I would venture to guess these are from the same lot. So if you want to check somewhere else for some White Tops it might be worth a trip to Big Lots.

It depends. If your phones are old enough, there's a good chance that they use NiCd rechargeable batteries. The batteries here are of NiMH type. In order to tell, look at the phone's instruction booklet, or at the existing batteries (assuming originals).

For powering the units, it does not really matter what type you use - NiCd, NiMH or plain Alkaline, they will all work. The problem is that the chargers at the cradles of NiCd phones are *super dumb* chargers that can ruin the more sensitive NiMH.

Anyway, from my experience, most phones use battery packs, and not single units, so you may need to hack the tiny wire and connector to work with plain batteries.

this is something interesting ,do you have some video or instructions how to accomplish this?

Not to TC, but how do we know these aren't really old stock? Looking at the picture of the packaging it's quite different then the picture on the Amazon offering which say's things like "durablock power preserve" etc..

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